讓oracle實現(xiàn)自增字段
先建序列,然后建立一個觸發(fā)器實現(xiàn)!
cata0是表名,cata0_id是需要自增的字段!
CREATE SEQUENCE SEQ_cata0
?INCREMENT BY? 1
?START WITH? 1
?MAXVALUE? 9999999
CREATE TRIGGER TRG_cata0 BEFORE
INSERT? ON cata0
FOR EACH ROW begin
?? SELECT SEQ_cata0.NEXTVAL
???? INTO :NEW.cata0_ID
???? FROM DUAL;
End TRG_cata0;